Generation of few-mJ, two-cycle laser pulses with carrier-envelope phase stabilization

Here demonstrated, 5.5 fs, 2.7 mJ laser pulse train at 1 kHz repetion rate with precisely controlled CEP (250 mrad RMS) is achieved by combing chirped pulse amplified laser with hollow-core fiber based technique. This TW level few-cycle laser source will be used in generating intense high-order harmonics (e.g.: isolated attosecond pulse synthesis, cut-off extension into water window for biological imaging), ultrafast dynamics in molecules.